package com.zhang.learn.klazcqdependce;

import sun.security.jca.GetInstance;

/**
 * @author zhanghaolian
 * @date 2021/10/20 10:42
 */
public class B {
    public static final A a = new A();

    public static final B b= new B();
    public void testB() {
        System.out.println("testB");
    }

    public static B getInstance() {
        return b;
    }
}
